kernel pae and kernel vanilla

[scrarfussi]

can anyone please explain to me the difference betwwen these two kernels thank you

[HROAdmin26]

Wikipedia - Vanilla

Further developing his own code and integrating changes made by other programmers, Linus Torvalds keeps releasing new versions of the Linux kernel. These are called "vanilla" kernels, meaning they have not been further modified by anyone. Many Linux operating system vendors modify the kernels of their product, mainly in order to add support for drivers or features which have not officially been released as stable, while some distributions rely on vanilla kernels.

Kernel Trap - HIGHMEM

3. HIGHMEM solution for using 64 GB of memory

This is enabled via the PAE (Physical Address Extension) extension of the PentiumPro processors. PAE addresses the 4 GB physical memory limitation and is seen as Intel's answer to AMD 64-bit and AMD x86-64. PAE allows processors to access physical memory up to 64 GB (36 bits of address bus). However, since the virtual address space is just 32 bits wide, each process can't grow beyond 4 GB. The mechanism used to access memory from 4 GB to 64 GB is essentially the same as that of accessing the 1 GB - 4 GB RAM via the HIGHMEM solution discussed above.

[scrarfussi]

thanx mate